refactor: Move signal handling to its own class

src/bojack/event_loop/signal.cr

@@ -0,0 +1,20 @@
+require "socket"
+require "../logger"
+
+module BoJack
+  module EventLoop
+    class Signal
+      @logger : BoJack::Logger = BoJack::Logger.instance
+
+      def watch(server : TCPServer)
+        ::Signal::INT.trap do
+          @logger.info("BoJack is going to take a rest")
+
+          server.close
+
+          exit
+        end
+      end
+    end
+  end
+end

src/bojack/server.cr

@@ -37,11 +37,7 @@ module BoJack
     end
 
     private def handle_signal_trap
-      Signal::INT.trap do
-        @logger.info("BoJack is going to take a rest")
-        @server.close
-        exit
-      end
+      BoJack::EventLoop::Signal.new.watch(@server)
     end
 
     def self.memory